I've done all of the pushing and pulling at the stalk, but to no avail. I even switched off, removed the key, but still no change.....

then....

I gave up and was resigned to taking it to the dealer....

So after leaving the car for 1 hr, I returned and miraculously, it has reset itself and all back to normal.

Phew!! avoids a trip to the dealer. Mind you, I wouldn't mind a trip to see a GT2 when that hits the showroom.